James h



J. H. DEAN.

RANGE.

APPLICATION FILED SEPT. 18. 1919- 1,320,748. Patented Nov. 4, 1919.

2 SHEETS-SHEET 1.

? figs.

76 lillm I i .50 i

1&6722577 J. H. DEAN.

RANGE.

APPLICATION FILED SEPT. $8, I919.

Patented Nov. 4, 1919.

2 SHEETSSHEET 2.

JAMES H. DEAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO COLE MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION.

RANGE.

Application filedfSeptember 18. 1919. Serial No. 324.333.

To all whom it may concern Be it known that I, J AMES H. DEAN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Ranges, of which I declare the following to be a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

Figure 1 is a view in central vertical sec-= tion through a range embodying my invention; f

Fig. 2 is a view throughthe oven and 1ts inclosing chamber on line 22 of Fig. 1;

Fig. 3 is a plan view of the oven, the smoke flue being shown in horizontal section;

'Fig. 4 is a sectional view on line 4-4 of Fig. 1;

Fig. 5 is a sectional vlew on lme 5-5 of Fig. 1, the to of the range being shown in plan;

Fig. 6 is a detail view showing certain of the valve operating mechanism;

Fig. 7 is a view in horizontal section on line 7-7 of Fig. 1.

The present invention has relation more particularly to that class of ranges known as high oven ranges, and the object of the invention is to afford a construction whereby the fuel gasesv may be so directed as to most effectually heat the oven, or, when such heating of the oven is not required, may be passed directly into the smoke flue of the range. I

A further object of the invention'is to provide for a more effective combustion of the fuel gases after they have passed from the fire boX- or primary combustion chamber of the range and before they are delivered into the oven-heating chamber. A still further object of the invention is to provide ap proved means for controlling the passage of fuel gases and the admission of a1r to the secondary combustion chamber of the range.

The invention consists in the features of novelty hereinafter described, illustrated in the accompanying drawings, and partlcularly pointed out in the claims at the end of this specification.

The body 10 of the range may be of. the usual or suitable construction, being provided with the fire box 11 beneath the range top 12. The range will beprovided at its Specification of Letters Patent.

'22 will'be controlled.

Patented Nov. 4, 1913.

front with the usual doors by which air and fuel may be admitted and through which ashes may be removed. As shown, the top 12 is formed as a separate casting, being provlded at its rear with an extension 13 having a flange 14 to receive the lower end of a pipe 15 that constitutes a by-pass for the fuel gases, the upper end of this pipe 15 bemg united by a connection 16 to the smoke fine 17. Below the rear portion of the top 12 of the range is mounted a casting 20, the rear portion 21 of which is formed as an elbow over which the rear portion 13 of the top 12 is placed to form a passageway for the fuel gases direct from the fire box to the by-pass pipe 15. In the rear portion 21 .of the casting 20 is placed the valve or damper 22, through the hub 23 of which passes the squared rod 24 whereby the valve or damper The hub 23 of the valve 22 extends through the bottom of the casting 20 and is formed with a polygonal opening through which the rod 24 passes. Upon the rod 24 is mounted a handle 26 whereby the rod 24 will be manipulated. From the lower portion of the casting 20 rises a deflector plate 6, preferably formed integral with the casting 20, this deflector plate serving to insure a more uniform distribution of the fuel gases beneath the top of the range and before their passage under the by-pass pipe 15.

From the top 12 of the range rises a flange 30, within which fits the lower end of the secondary combustion chamber 31. This chamber is preferably formed of a metal jacket 32 having a lining 33 of fire clay or other suitable refracting material, and the top of'the combustion chamber is provided with a similar lining 34. Behind the secondary combustion chamber 31 is arranged the back plate 35 that is suitably mounted upon the top of the range.

Ontop of the secondary combustion chamber 31 is mounted an oven inclosing, or an oven heating, chamber 36, in the bottom plate of which is formed a port 37 communicating with the opening in the top of the secondary combustion chamber 31, and over this port 37 is arranged a valve 38 whereby the passage of fuel gases into the oven heating chamber 36 is controlled. The valve 38 is preferably a fan-shaped valve, the hub of which passes through a hole formed in the bottom of the chamber 36 and is connected lower end of which is preferably flanged;

and bolted to the casting 20, as clearly shown in Fig. 1 of the drawings. Beneath the lower end of the air delivery pipe 40 is arranged a valve 41 whereby the admission of air to the'pipe 40 is controlled. Preferably this valve is a fan-shaped valve that is pivoted at 42 (see Figs. 6 and 7) to the flange at the bottom of the air delivery pipe 40. To this valve 41 is pivotally connected, as at 43, one end of a link 44, the opposite end of which link is pivoted as at 45 (see Figs. 6 and 7 to an arm 46 having a hub that is secured by a pill 48 to the lower end of the rod 24.

It will be observed that the valves 38 and r 41 are formed materially wider than the openings which these valves control, the purpose of this being to permit a material shift of the valves to be effected without uncovering the openings opposite which they are operating rod 24 and its operating handle 26, so that by this'means the several valves can be manipulated by'a single handle. Inasmuch, however, as the valves 38 and 43 are materially wider than the ports which "they control, it will be seen that the valve 22 can be opened and closed to a considerable extent before the valves 38 and 43 begin to open the ports opposite which they are arranged. Hence any slight movement of the valve 22, such as may be desired in regulating the draft of. the range, can be effected without uncovering the ports which the valves 38 and 43 control.

The chamber 36, which incloses the oven '50, surrounds the oven and the top of this chamber is formed with an opening to receive an annular flange projecting from the connection 16 at the bottom of the smoke flue 17. Preferably in the top of the chamber and above the oven 50 are arranged deflector plates 51 to insure a more uniform distributionl of the heat about the oven. The bottom of the oven is providedwith means for protecting it against the intense heat of the fuel gases issuing from the top of the secondary combustion chamber 31, this pro tective means comprising a sheet metal plate 52 provlded upon its under s1de wlth a supplemental plate 53 of heat-resisting material. Preferably this plate 53 is formed of cast iron and preferably, also, the space between the depressed portion of the sheet metal plate 52 and the bottom of theoven 50 is filled with asbestos or like refractory material.

From the foregoing description the operation of my improved range will be seen to The several valves 22, 38 and 41 are all connected to and controlled by the operation of such valves.

be follows: When the oven50 is not in use and the upper portion of the range only is used for cooking, the valves 38 and 43 desired to use the oven the rod 24' and the handle 26 will be shifted so as to close the channel21 of the casting 20and so'as to open theport 37 at the top of the secondary combustion chamber 31 and open the'bottom of the airadmission pipe 40. When this has been done the fuel gases will'passfrom the fire box up'through the secondary combustion chamber 31, thence through theoven inclosing chamber 36, and to the smoke fine 17. The air adinittedby the air delivery pipe 40 to the upper portion of the secondary combustion chamber 31 will insure a most thorough burning of the fuel gases in the chamber 31 and will so insure the effective heating of the oven. Inasmuch as the air delivered to the air pipe 40 passes beneath and; around the fire box 11 and into the upper part of the combustion chamber 31, it will be preheated and'hence will be in condition to insurethe most effective combustion of the gases; V 1

By forming the discharge port 37 at the top of the secondary, combustion chamber 31 of smaller diameter than the interior of said chamber, and by arranging the airadmission pipe or channel 40 centrally beneath said port 37, a thorough mixture of the air with gases from the fire box is insured. The connection of the several'valves so that theymay be shifted by asingle handle is highly advantageous, as it secures certainty and unlformity at all times in the What I claim as my mvention and desire to secure by Letters Patent is I 1. A range of the characterdescribed comprising a body having a fire box, a raised oven heating chamber, a smoke flue connected to said oven heating chamber and having a pipe connecting directly with. the range body, a secondary combustion chamber between the fire box and the raised oven heating chamber, and valve mechanism whereby the fuel gases may be caused to pass either directly fromthe fire box to the smoke flue or through the secondary coni bustion chamber and the oven heating chamberto the 2. A,. range of the character described comprising a body having a fire box, a raised oven heating chamber, a smoke flue connected to said oven heating chamber and having a pipe connecting directly with the range body, a secondary combustion chamber between the fire box and the raised oven heating chamber, a channel for delivering air to said secondary combustion chamber, and valve mechanism whereby the fuel gases may be caused to pass either directly from the fire box to the smoke flue or through the secondary combustion chamber and the oven heating chamber to the smoke flue.

A range of the character described comprising a body having a fire box, a raised oven heating chamber, a smoke flue connected to said oven heating chamber and having a pipe connecting directly with the range body, a secondary combustion chamber between the fire box and the raised oven heating chamber, a channel for delivering air to said secondary combustion chamber, and valve mechanism whereby the fuel gases may be caused to pass either directly from the fire box to the smoke flue or through the secondary combustion chamber and the oven heating chamber to the smoke flue and whereby the passage of air through said air channel may be controlled.

4. A range of the character described comprising a body having a fire box, a raised oven heating chamber, a smoke flue connected to said oven heating chamber and having apipe connecting directly with the range body, a secondary combustion chamber between the fire box and the raised oven heating chamber, a channel for delivering air to the upper portion of said secondary combustion chamber, and valve mechanism whereby the fuel gases may be caused to pass either directly from the fire box to the smoke flue or through the secondary combustion chamber and the oven heating chamber to the smoke flue and whereby the passage of air to said air channel may be controlled.

5. A range of the character described comprising a body having a fire box, a raised oven heating chamber, a smoke flue connected to said oven heating chamber and having a pipe connecting directly with the range body, a secondary combustion chamber between the fire box and the raised oven heating chamber, a valve for controlling the passage of fuel gases directly from the fire box to the smoke flue, a valve for controlling the passage of fuel gases through the oven heating chamber, and means connecting said valves for conjoint movement.

6. A range of the character described comprising a body having a fire box, a raised oven heating chamber, a smoke flue connected to said oven heating chamber and having a pipe connecting directly with the range body, a secondary combustion chamber between the fire box and the raised oven heating chamber, a valve for controlling the heating passage of fuel gases directly from the fire box to the smoke flue, a valve for controlling the passage of fuel gases through the oven heating chamber, a valve for controlling the admission of air to the secondary combustion chamber, and means connecting'said valves for conjoint movement.

7. A range of the character described comprising a body having a fire box, a raised oven heating chamber, a smoke flue connected to said oven heating chamber and having a pipe connecting directly with the range body, a secondary combustion cham ber between the fire box and the raised oven chamber, and valve mechanism whereby the fuel gases may be caused to pass either directly from the fire box to the smoke flue or through the secondary combustion chamber and the oven heating chamber to the smoke flue, said valve mechanism permitting a substantial opening and closing of the direct passage between the range body and the smoke flue without opening the valve that controls the passage of fuel gases to the oven-inclosing chamber.

8. A range of the character described comprising a body having a fire box, a raised oven heating chamber, a smoke flue connected to said oven heating chamber and having a pipe connecting directly with the range body, a secondary combustion cham ber between the fire box and the raised oven heating chamber, a channel for delivering air to said secondary combustion chamber, and valve mechanism wherebythe fuel gases may be caused to pass either directly from the fire box to the smoke flue or through the secondary combustion chamber and the oven heating chamber to the smoke flue, said valve mechanism permitting a substantial opening and closing of the direct passage between the range body and the smoke fine without opening the valves that control the passage of fuel gases to the oven-inclosing chamber and the admission of air to said air channel.

9. A range of the character described comprising a body having a fire box, an oven heating chamber mounted above the top of the range body, a smoke flue connected to said oven heating chamber and having a pipe connecting directly with the range body, a secondary vertically disposed combustion chamber communicating at its top with the bottom of the. oven heating chamber, a channel for delivering air to said secondary combustion chamber, and valve mechanism whereby the fuel gases may be caused to pass either directly from the fire box to the smoke flue or through the secondary combustion chamber and the oven heating chamber to the smoke flue.

10. A range of the character described comprising a body having a fire box, a raised oven heating chamber, a smoke flue connected to said oven heating chamber and bnstion chamber, a valve at the bottom of having a pipe connecting directly with the said air channel and a valve in the pipe range body, a secondary combustion chamleading directly from the range body to the 10 ber between the fire box and the raised oven smoke fine, and a cooperating rod whereby heating chamber, a channel for delivering said several valves areicontrolled.

air to said secondary combustion chamber, a valve at the top of said secondary com- 7 v i JAMES H. DEAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G. 

